digital depth display are read from the center element only.
To turn the TargetTrack feature off, simply press the MENU key until its menu appears as shown at right, then press the down arrow key.
CHART SPEED
The rate echoes scroll across the screen is called the chart speed. It’s adjustable by pressing the menu key until the chart speed menu appears. Chart speed is set to maxi- mum when the unit is first turned on. To decrease it, press the down arrow key. Press the up arrow key to increase the speed again. The percent numbers in the Chart Speed menu box shows the speed. Echoes scrolling onto the screen will also show the effects of the change. If you reach the maximum or minimum level, an warning tone sounds.
To stop the chart, first clear any menu from the screen by pressing the PWR key. You can’t stop the chart while a menu is displayed. Now press the up arrow key. The chart freezes and the word “STOP” appears at the top right portion of the screen. To start the chart, press the up arrow key again.
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